Spinning apparatus



Aug. 15, 1933. HARR|$ 1,922,949

SPINNING APPARATUS Fi1ed April 3, 1931 4 Sheets-Sheet l )8 77- INVENTOR.

mamas 15 0 /7 13 A TTORNEYS.

Aug. 15, 1933. "r. HARRIS 1,922,949

SPINNING APPARATUS Filed April 3, 1931 4 Sheets-Sheet 2 INVENTOR. 720/2105 /%//13 A TTORNEYS.

Aug. 15; 1933; T H RRIS 1,922,949

SPINNING APPARATUS FilecLApril 3, 1931 4 Sheets-Sheet 4 INVENTOR. mamas fla'r/zfs A TTORNEYS.

. Patented Aug. 15, 1933 PATENT: OFFICE SPINNING APPARATUS Thomas Bari-is,

Providence, a. I.

. Application April 3, 1931. Serial No. 521.498

Claim.

5 several processes and handlings of the work between doubling and spinning.

' Another object of the invention is to control the selvages of the sliver in its passage thru the spinning unit.

I Another object of the invention is to twist the work to control the selvages and prevent fraying of the work.

Another object of the invention is the provision of more even roving or yarn by spinning the same directly from the doubling where it is most even in weight and size in its travel for proper conditioning the thread for weaving.

A further object of the invention is to provide a construction by which each yam end may be controlled and its spinning operation stopped should the yarn break without the necessity of stopping the companion units for operating upon other slivers or yarn.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a sectional view thru the casing of my improved unit taken to show the maximum of the working parts;

Fig. 2 is a plan view arrangement but in section taken on line 2-2 of Fig. 1;

Fig. 3 is a rear view of the casing or spinning unit showing the, drive gears for the diflerent rolls;

Fig. 4 is a section on line 44 of Fig. 1 showing the drive gear arrangement for there- 0 tary member.

Fig. 5 is a section on line 5--5 of Fig. 1 showing the deck plate and its means for driving one of the rolls of a pair by rotation of the member with reference thereto.

Cotton sliver as it comesv from the cards is usually doubled or several ends placed together from which it goes thru a drawing frame, then a slubbing process and two or three intermediate roving processes before spinning. A twist is placed in the yarn in order that it may be pulled from one place to another, and in order. to eliminate several processes and spin the yarn directly from doubling where it is more even, I place a false twist in the sliver between each pair of drawing rolls to control the edges of the sliver and prevent the fibres at the edges thereof from fray n and in order that-the yarn may not be too tightly falsely twisted between. the receiving and delivery rolls by which drawing will be retarded or prevented, I may place a false twist in the yarn in one direction between the first two pairs of drawing rolls and in the opposite direction between the next pair of drawing rolls and so forth thru the machine, whereby I may take sliver directly from. the doubling operation and spin the same with a long draft, thereby ellmilisting the siubbing and the intermediate roving processes and from which I may finally obtain an extremely long draft of yarn without fraying of the edges and a yarn of improved quality by reason of the fact that I spin the yarn direct- 7 ly from the doubling process at which point it is more even in weight and size than at any other step in the operation; and the following is a detailed description of the present embodiment of this invention, illustrating the preferred means 7 by which these advantageous results may be accomplished.

With reference to the drawings, 10 designates a casing, the rear wall 11 of which may be mounted in fixed position and the front wall 12 of which may act as a cover for closing the casing or opening the same for access of the parts. 0n the rear wall of the casing there is mounted a series of deck plates 13, 14, 15, 16, 17 and 18, the upper and lower decks 13 and 18 being pro- 35 vided with openings 19 and 20 for the purposes hereinafter set forth, whereas the intermediate deck plates 14, 15, 16 andl'l are of annular form with openings 21 cut with gear teeth 22. Upon each of the intermediate deck plates there are rotatably mounted plate members 23,. 23*, 23 and 23 by means of ball bearings 24 each of which is driven thru the back wall of the casing by a separate gear of the train of gears illustrated in Fig. 3.

Upon the upper and lower deck plates 13 and 18 there are mounted pairs of rolls 31 and 32 one of which rolls is driven and the other of which yieldingly engages therewith thru a spring 33. Also mounted upon each of the rotary members 14 to 17 are similar pairs of rolls 34, 35, 36 and 37 which are driven as will be hereinafter explained.

The drive of this train of gears is from some suitable source of power indicated by shaft. 25 which is coupled with shaft 26 on the spinning unit thru clutch 27 which drives shaft 28 by means of mitre gears 29 and 30.

The pair of rolls 32 on thelower deck plate 18 are driven from the power shaft 28 thru gears o 38, 33 and bevel gears 40 and 41 to rotate the shaft 42 and in turn thru bevel gears 43 and 44 rotate the shaft 45 upon which the fluted roll of the pair of rolls 32 is mounted. The lower rotary member 230 is driven by means of a gear 46 on shaft 28 which meshes with the toothed periphery 47 thereof. The next rotary member 23b is driven from shaft 28 thru gears 48, 49, the latter meshing with the teeth 50 thereof to rotate the member 23b in the opposite direction. In a similar way rotation is transmitted to the other rotary members. Shaft 51 is drivenby gear 49 and drives gears 52 and 53, the latter meshing with the teeth 54 of the rotary member 23a to drive it in the same direction as 230 but opposite to member 23b and at a different relative speed. Also,'shaft 51 drives gear 55, intermediate gear 56 and gear 57 meshing with the teeth 58 of the rotary member 23; and also, shaft 51.by means of bevel gears 59 and 60 rotates shaft 61 from which thru worm 62 and worm gear 63 rotary motion is transmitted to theshaft 64 upon which the fluted or drive roll of the pair of rolls 31 is mounted.

Motion is transmitted to the pairs of rolls 34,;

35, 36 and 37 by rotation of the member's I23, 23a, 23b and 230. Each member carries a gear 65 meshing with the internal teeth 22 of the deck plate to rotate shaftv 66, pinion-gear 67 and gear 68, the latter of which is mountedf'iipon shaft 69 upon which is also mounted. thefiuted or drive roll of the pair of rolls. I have explained the operation for the pair of rolls 36, and it will be understood that the other pairs of rolls mounted upon these rotary members. operate.

similarly except that such' gears as 68 of each alternate pair will have their teeth disposed at a different angle so that all of the rolls of the' pairs will operate similarly to cause the work to feed in the same direction thru the apparatus.

It is, of course, understood that the drive or fluted roll of each pair is in fixed bearings and that the .leathered cover or other roll of the pair is forced into engagement therewith thru the resilient springs 70. The gear ratios are such that each successive pair of rolls will be rotated progressively faster than the previous pair of rolls in a predetermined amount to provide the desired amount of draft between adjacent pairs of rolls.

I have described the apparatus for accomplishing my improved results in which I have referred to the adjacent pairs of rolls as revolving in opposite directions about the work as a center, but it will be readily understood that the rolls may all revolve in the same direction,.if desired, in spinning the sliver to finished yarn.

By operating upon the sliver ,in the manner above described, the edges are continually turned into the center of the work preventing fraying of the fibres at the edges of the flat sliver and the provision of means by which long draft may be accomplished and by the elimination of handling and piecing of the work a better and more even yarn is provided.

I claim:

1. A method of long draft spinning which consists is passing sliver thru a series of pairs of nip rolls, each pair operating progressively at increased speeds for drafting the sliver, and revolving adjacent pairs of rolls in opposite directions about the sliver as a center to impart opposite twists in the sliver.

2. On a long draft spinning apparatus, a plurality of pairs of nip rolls, means for rotating said pairs at different speeds for drafting the work, and means for revolving one pair of rolls in one direction and the next pair of rolls in the opposite direction about the work as a center to impart opposite twists therein.

3. In a spinning apparatus, a plurality of generally parallel plate members, a pair of rolls rotatably mounted on each member, means for revolving said rolls at relatively different speeds, and means for revolving one member in one direction and the next member in the opposite direction and about the work as a center.

4. In a spinning apparatus, a plurality of generally parallel plate members, a pair of rolls rotatably mounted on. each member, a drive shaft outside of said members, gear means connected to said drive shaft for revolving said members adjacent members being revolvable in opposite directions, driving means for said rolls, and means operated by the rotation of said members for operating said roll driving means.

5. In a spinning apparatus, a plurality of generally parallel plate members, a pair of rolls rotatably mounted on each member, means for revolving one of said members in one direction,

means for revolving the next member in the opposite direction about the. work as an axis, driv- .ing. means for said rolls, and means operated by termediate decks, pairs of rolls mounted on the upper and lower decks and on said members, means on the outside of said casing extendingtherethrough for revolving adjacent members in opposite directions, and means for driving the rolls in the same direction.

8. A method of spinning yarn which consists in drawing and twisting the strand between three successive nips thereorri-l'ay false twisting the strand in one direction in one stretch of the yarn between adjacent nips and false twisting the strand in the other direction in the next adjacent stretch of the strand between adjacent nips thereon. i

9. A method of spinning yarn which consists in drawing and twisting the'strand between a series of successive nips thereon by false twisting the strand in one direction in one stretch of the strand between adjacent nips and false twisting the strand in the other direction in the next ad-' 

